Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 5 is invalid. The top center 3x3 Box is invalid. Go back and make a different choice.

 

1      
       
      9
2
6
       
       
   8  9
4
3
1      
       
   8   
7
5
4
1
3
5
5
7
8
6
2
7
8
5
2
1
6
9
3
4
3
9
9
7
5
1
2
6
8
1      
       
   8   
2
6
1      
       
   8   
1
9
7
3
5
       
      6
   8   
5
7
       
      6
   8   
2
3
1
4
9
6
3
4
5
8
2
1      
       
      9
1
7
2
9
1
6
7
4
3
5
8
5
7
8
3
9
1
4
6
2

 

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